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Electrotechnical Materials

* Exchange students do not have to consider this information when selecting suitable courses for an exchange stay.

Course Unit Code637-0079/05
Number of ECTS Credits Allocated4 ECTS credits
Type of Course Unit *Compulsory
Level of Course Unit *First Cycle
Year of Study *First Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech, English
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
DRA30prof. Ing. Jaromír Drápala, CSc.
SZU02doc. Ing. Ivo Szurman, Ph.D.
Summary
The aim of teaching of the subject is to provide students with basic information about current and prospective materials, which are used in various fields of electrical engineering and micro-electronics. Individual categories of materials for applications in electrical engineering are the following ones: conductive materials (conductors, super-conductors, materials for contacts, thermo-electric conversion, resistance materials, solders), dielectrics, ferro-electric materials and insulating materials, magnetic materials (soft, hard, special - based on alloys of rare-earth metals and oxides) semiconductors for micro- and opto-electronics, solar cells, metallic glasses, liquid crystals, nano-materials.
Learning Outcomes of the Course Unit
Student will be able to:
- classify basic groups of the current and advanced materials for applications in electric engineering, micro-electronics and opto-electronics
- apply basic theoretical knowledge on influence of composition and internal structure of material on physical, mechanical, electrical, magnetic and optical properties
- define requirements for individual groups of materials, technology for preparation and further processing, realisation of electronic elements
Course Contents
1. Electron theory of the metallic state. Cohesion forces of solid matters; types of elementary bonding and their influence on properties of materials. Classification of solid matters according to chemical bonds. Cohesive energy of the metal, band theory, standard metals and transition metals.
2. Crystalline materials (polymorphism), standard type of crystal lattices, plains and directions, reciprocal lattice. Brillouin zone, conductors, insulators, semiconductors. Specific heat.
3. Crystal structure defaults: vacancies, dislocations, stacking faults, grain boundaries in crystals. Single crystals, polycristalline and amorphous metals. Solid solution, intermetallic phases. Linear expansion and volume changes during phase transformation in solid state.
4. Conducting materials. Physical principles of the electrical conductivity of metals, basic characteristic of conductors, superconductivity. Metallic conductive materials (Cu, Al, W, Mo, …) and their alloys, carbon materials.
5. Special conducting materials. Contact materials, resistance materials, thermocouples, bimetals, solders, metals and alloys for safety-fuse, shape memory materials. Superconducting materials.
6. Physical properties and main kinds of semiconductor materials. Semiconductor materials: elementary and compounds. Basic demands on preparation of pure materials.
7. Refining and structure improving methods, zone refining, directional crystallization, distillation. Methods of crystal growing, Czochralski method. Types of semiconductors (AIIIBV, AIIBVI). Technology of thin layers deposition (epitaxy) and junction (diffusion).
8. Magnetic materials. Basic relations, notions, fundamentals of the ferromagnetism, characteristics of magnetic materials. Standard types of magnetic materials.
9. Soft magnetic material (Fe-Si, Fe-Ni), metallic glasses. Hard magnetic material. Ferrites. Structure, classification, processing technologies, characteristics and application domains.
10. Dielectrics and insulators, characteristics and structure insulators, polarization and permittivity of dielectrics, electrical conductivity of insulators.
11. Specific dielectric strength of solid state insulators, breakdown and basic breakdown types, properties of insulators.
12. Overview of electro-insulating materials. Gaseous, liquid and solid state insulators, inorganic insulating material.
13. Construction materials, basic classification: steel, cast iron, non-ferrous metals and alloys, composites, ceramics.
14. Properties of construction materials and methods of mechanical testing: tensile test, compression test, notched test, fracture toughness, fatigue and creep.
Recommended or Required Reading
Required Reading:
BOUDA, V., HAMPL, J., LIPTÁK, J. Materials for Electronics. Textbook of ČVUT Praha, 2000, 208 p.
HARPER, CH.A. Electronic Materials and Processes Handbook. McGraw-Hill, 2004.
WHITAKER, J.C. Microelectronics. Second Edition. CRC Press, 2006.
KŘÍŽ, M., KULA, V. Introduction to Electrical Engineering. Praha: ČVUT. 2000
HAMPL, L. LIPTÁK, J. Materials for Electrotechnics. Praha: ČVUT. 2006
DRÁPALA, J., KURSA, M.: Elektrotechnické materiály. 434 s. E-learning, VŠB-TU Ostrava, 2012, www.person.vsb.cz
ROUS, B.: Materiály pro elektrotechniku a mikroelektroniku. SNTL Praha,
1991, 463 s.
BOUDA, V. a kol.: Vlastnosti a technologie materiálů. ČVUT Praha,1996,221 s.
BOUDA, V. a kol.: Materiály pro elektrotechniku. ČVUT Praha, 2000, 226 s.
Recommended Reading:
KLAUK HAGEN: Organic Electronics: Materials, Manufacturing and Applications. Willey-VCH, 2006.
DORF, R.C.: The Electrical Engineering Handbook Series. Second Edition. CRC Press, 2005.
SOLYMAR, L., WALSH, D. Lectures on the Electrical Properties of Materials. Oxford: University Press. 1991
NEWEY, C., WEAWER, G. Materials Principles and Practice. London: Alden Press. 1990
ASM Handbook. Vol.2, Properties and Selection: Nonferrous Alloys and Special-Purpose Material. 10th edition, ASM International, 2000, 1328 p. ISBN 0-87170-378-5
DAVIS, J.R.: Metals Handbook, Desk Edition, ASM International, 1998, 1521 p.
DRÁPAL, S.: Materiály a technologie I. ČVUT Praha, 1983, 163 s.
DRÁPAL, S.: Materiály a technologie II. ČVUT Praha, 1986, 167 s.
DRÁPAL, S.: Struktura a vlastnosti materiálů I. Kovy. ČVUT Praha,1990,223 s.
VAVŘINA, K., KREJČIŘÍK, A.: Elektronika materiálů. Skripta ČVUT Praha, 1986.
BOUDA, V., MACH, P., PETR, J., ŠTUPL, K.: Vlastnosti a technologie materiálů. Skripta ČVUT Praha, 1996.
Planned learning activities and teaching methods
Lectures, Individual consultations, Tutorials, Project work
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Exercises evaluation and ExaminationCredit and Examination100 (100)51
        Exercises evaluationCredit40 25
        ExaminationExamination60 16